Linux pwconv command
Linux pwconv command to enable the user of the projector password.
Linux system users and groups passwords are stored in the name of the passwd and group files, these two files located in the / etc directory. Due to the required operating system, anyone able to read them, causing flaws in security. Projection password change the password within the file exists / inner shadow and gshadow files etc directory, only allows the system administrator to read, while the original password is replaced by "x" character, effectively strengthen the security of the system.
grammar
pwconv
Examples
Open the user's password projection
# pwconv